If you have ever worked in a Sitecore instance with a lot of languages, you may have noticed that sometimes it could be quite time consuming (and frustrating) to look for the language you need in the language picker. This isn't as much a developer problem as it is an issue for the content editors who often make edits in multiple languages. So, here's a quick and easy client-side solution.
The language selector is generated by an xml control located here: \sitecore\shell\Applications\Content Manager\Galleries\Languages\Gallery Languages.xml
You can find the modified control up on GitHub. Let me know what you guys think!
Update: This modification is now also available for download from the Sitecore Marketplace.